Detailed Information on Publication Record
2007
Photochromism of phenoxynaphthacenequinones: diabatic or adiabatic phenyl group transfer?
BORN, R., W. FISCHER, Dominik HEGER, B. TOKARCZYK, Jakob WIRZ et. al.Basic information
Original name
Photochromism of phenoxynaphthacenequinones: diabatic or adiabatic phenyl group transfer?
Name in Czech
Fotochromismus fenoxynaftacenchinonů: diabatický nebo adiabatický přenos?
Authors
BORN, R. (276 Germany), W. FISCHER (756 Switzerland), Dominik HEGER (203 Czech Republic, guarantor), B. TOKARCZYK (616 Poland) and Jakob WIRZ (203 Czech Republic)
Edition
PHOTOCHEMICAL & PHOTOBIOLOGICAL SCIENCES, 2007, 1474-905X
Other information
Language
English
Type of outcome
Článek v odborném periodiku
Field of Study
10402 Inorganic and nuclear chemistry
Country of publisher
United Kingdom of Great Britain and Northern Ireland
Confidentiality degree
není předmětem státního či obchodního tajemství
Impact factor
Impact factor: 2.208
RIV identification code
RIV/00216224:14310/07:00022693
Organization unit
Faculty of Science
UT WoS
000246311700010
Keywords in English
LASER FLASH-PHOTOLYSIS; CONJUGATED RADICALS; ELECTRON-TRANSFER; PHOTOISOMERIZATION; MECHANISM; DERIVATIVES; SINGLET; STATE; 6-PHENOXY-512-NAPHTHACENEQUINONE; PHOTOCHEMISTRY
Tags
Tags
International impact, Reviewed
Změněno: 30/3/2010 13:23, doc. Mgr. Dominik Heger, Ph.D.
V originále
The photochromic reactions of 6-phenyloxy-5,12-naphthacenequinone ( 1) and of the 6,11-diphenyloxy derivative 2 were investigated by subpicosecond pump-probe, photoacoustic, and emission spectroscopies, and by nanosecond laser. ash photolysis ( LFP). The transformation of the trans-quinones 1 and 2 to their ana-isomers proceeds via short-lived triplet states of 1 and 2 ( tau ca. 2 ns) and spiro-bridged biradical intermediates ( ca. 6 ns). The long-lived ( mu s) ana-triplets that are observed by LFP of 1 and 2 are formed ( predominantly) by reexcitation of the biradicals and ana-quinones, which appear during the laser pulse. The reverse reaction, ana -> trans, proceeds exclusively from the lowest pi, pi* singlet state of the ana-quinones.
In Czech
The photochromic reactions of 6-phenyloxy-5,12-naphthacenequinone ( 1) and of the 6,11-diphenyloxy derivative 2 were investigated by subpicosecond pump-probe, photoacoustic, and emission spectroscopies, and by nanosecond laser. ash photolysis ( LFP). The transformation of the trans-quinones 1 and 2 to their ana-isomers proceeds via short-lived triplet states of 1 and 2 ( tau ca. 2 ns) and spiro-bridged biradical intermediates ( ca. 6 ns). The long-lived ( mu s) ana-triplets that are observed by LFP of 1 and 2 are formed ( predominantly) by reexcitation of the biradicals and ana-quinones, which appear during the laser pulse. The reverse reaction, ana -> trans, proceeds exclusively from the lowest pi, pi* singlet state of the ana-quinones.
Links
| MSM0021622413, plan (intention) |
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